Glossary entry (derived from question below)
Aug 24, 2010 19:22
13 yrs ago
1 viewer *
French term
dispersion
French to English
Tech/Engineering
Mechanics / Mech Engineering
Evening all. My problem is with the expression
Mesure du pas et de sa dispersion. It is about measuring screw thread and I assume pas is pitch. But what is dispersion. It feels like distribution or spread but I am quite sure there is technical term that escapes me. All answers gratefully received. Thanks
Mesure du pas et de sa dispersion. It is about measuring screw thread and I assume pas is pitch. But what is dispersion. It feels like distribution or spread but I am quite sure there is technical term that escapes me. All answers gratefully received. Thanks
Proposed translations
(English)
4 +4 | dispersion |
kashew
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References
scatter |
Bourth (X)
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Change log
Sep 2, 2010 09:23: kashew Created KOG entry
Proposed translations
+4
8 mins
Selected
dispersion
In a numerically controlled machining tool, a tool path for machining, a rotational speed of a work and the like are input from cards, perforated tapes. magnetic tapes, etc. to a numerical control device in the form of coded numerical values, and machining is carried out according to output instructions from the numerical control device. While the numerically controlled machining tool, especially an NC-lath, is employed for threading in view of its performance, the so-called dispersion phenomena in which an effective radius or diameter of a finished screw thread is different from a desired dimension would arise due to thermal displacement of a machine, wear of a tool and the like.
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Note added at 1 heure (2010-08-24 20:43:16 GMT)
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From a patent application.
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Note added at 1 heure (2010-08-24 20:43:16 GMT)
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From a patent application.
4 KudoZ points awarded for this answer.
Reference comments
12 hrs
Reference:
scatter
Screw pitch precision measurement using simple linear regression and image analysis
Screw pitch measurement technique in this paper is based on image ..... The scatter plot of the data in Table 1 with the best fitted line. ...
linkinghub.elsevier.com/retrieve/pii/S0096300305009847
Wear due to relative motion between component surfaces is one of the primary modes of failure for many engineered systems. Unfortunately, it is difficult to accurately predict component life due to wear as reported wear rates generally exhibit large SCATTER [ ... ] An example of a systematic error that could occur in wear testing is an error in the manufacturer’s reported value for the LEAD-SCREW PITCH. If an encoder is used to record lead-screw rotations and the number of rotations is used to determine sliding distance, an error in the lead-screw pitch would introduce a bias into the computed sliding distance
http://research.me.udel.edu/~dlburris/papers/JA1.pdf
Screw pitch measurement technique in this paper is based on image ..... The scatter plot of the data in Table 1 with the best fitted line. ...
linkinghub.elsevier.com/retrieve/pii/S0096300305009847
Wear due to relative motion between component surfaces is one of the primary modes of failure for many engineered systems. Unfortunately, it is difficult to accurately predict component life due to wear as reported wear rates generally exhibit large SCATTER [ ... ] An example of a systematic error that could occur in wear testing is an error in the manufacturer’s reported value for the LEAD-SCREW PITCH. If an encoder is used to record lead-screw rotations and the number of rotations is used to determine sliding distance, an error in the lead-screw pitch would introduce a bias into the computed sliding distance
http://research.me.udel.edu/~dlburris/papers/JA1.pdf
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